Water-heater.



P. A. KNMP. WATER HEATER. APPLICATION FILED MAY 5, 190B. 928,261.Patented July 2o, 1909.

2 SHEETS-SHEET 2.

I Witnesses: In ventor l Preferably,

medium l5 i vice.

FRANK A. KNAPP, OF NEWARK, NEW JERSEY.

WATER-HE ATER..

No. esseci Specification of Letters Patent. Application led Hay 5, 1908.S`era1 No'. 430,934.

lPatented .lilly 20, i909.

Ib all 'whom it may concern.'

Be it known citizen of the United States, residing in Newark, 1n thecounty of Essex and State of New Jersey, have invented Certain new anduseful Improvements in WaterfHeaters, of which l the following is aspeciiication.

This invention pertains to means for heating water, and is especiallyadapted for use with gas burners or gas stoves.

One o f the objects of the invention is to prov1de an improved form ofsuch device in which the 'burning gas or other hea/ting will have readyaccess to a large .amount of surface, and can pass around and. inengagement with all. of the water containing portions.

'.A further Objectis to provide such adev1ce in connection with aspecial form Aof burner, and which can be removed. from .the burner andattached to any of the usual forms 4of gas ranges; being applicable tothe usual annular burner, by simply removing theV top plate of. the gasrange, and suitably connecting the outlet and inlet pipes of the heaterwith the boiler and the water supply.

In the accompanying drawings represent@i ing one embodiment of myinvention, Figure 1 is a vertical axial section throul h the de- Fig. 2is a plan view withA` the top member and the cap member 'removed and theburner member omitted. Fig, 3 isv a vertical section through the top,and Fig. .4 is a plan view of the same. Fig. 5 is a plan view, and Fig.6 an elevation ofthe cap member. Fig. 7 is a fragmentary verticalsection enlarged; and Fig. 8 shows on a reduced scale' the heater memberas applied to a gas ran e.'

T e water heater portion itself is shown as comprising two coils ofpipes or tubes 2 and 3, each being shown in the form of an evolute `withits adjacent convolutions spaced to permit the passage therethroughofthe heating medium, from a gas flame 'or other source. The two` coilsare shown as having their inner ends integrally connected, .as at 4, andare preferably placed in substantially parallel planes, one coil being ashort distance above the other coil. The outer ends of the two coilsform theinlet and outlet respectively. the water enters the lower coil 2first bythe inlet pi e 5 having a valve 6, thence passes around) theevolute to the central part and will pass upwardly by the connectlngportion 4 to the upper coil 3 around that I, FRANK A. KNAPP, a-

which it will circulate from the center out ward, leaving by the outlet7. These convolutions are also arranged relatively whereby a number offree vertical spaces between l the pipes are provided, indicated by m inthe drawings. But a large portion of the upper l coil is located abovethe spaces between the convolutions of the lower coil, and so that thegaslame passing between the convolutions of the lower coil will strikethe upper coil and have it's heat imparted thereto. A central space 8 isprovided at the center of both coils, and. to prevent waste of theheating'medium, a collar 1.0 is placed at this por tion and providedwith a cap pro'ecting beyond it to deflect' the gas outward on top ofthe upper coil. This collar may have a and is shownprovid ed witA a capl 2 having a number of aring portions 27, somewhat the sleeve over theupper coil.

The coil member 1s shown 'as supported .in a drum member i3, havingplates 14 extending radially inward upon which the coil member .issupported, the inlet and exit menibers 5 and 7 passing through aperturesin the drum. The drum and coil are of a size to be used with thecustomaryv form and. size of annular burner member 15, the radial platesresting on top 4of the burner and supporting the 'drum and coil thereon.The burner member 15 is shown as having legs 16, and a supply pipe 17.The drum extends outward some dlstance beyond the periphery of thelburner member, and to prevent the heating medium passing u i betweenthe coil and the drum, an annular deflecting ring 18 is secured to thedrum and convolution of the top coil. This will insure all the heatedgases from the'burner passing into close enga ement with the conthereto.

usual framworltrli for supporting 'various forms of cooking or heatingutensils, similar to a gas range or burner, but where the .water heateris used alone without a vessel being placed on top, it is desirable toconfine the *or this purpose a top plate 2U is provided having a flange21 adapted to lit on the rim 22 ofthe supporting in ember 19. This platehas a few apertures as 23, preferably of the same number as thedoilcctors l2 and arflange 11 at the top restin on the upper coil,

extends across to the outer,

volutions of' the two coi s and imparting heat The top of the drummember may .have the ases somewhat and prevent their free enit.`

vizor-shaped, that extend outward beyond gli CJi

ranged le alternate between 'them to still lurllier eenline the healedges before permill-ing its escape.

'.llle varier heater Cmnprlsing ille cell merlil ers zxml zlie drum :rmlfil/hel' eomleeeal parle, :m nimh/e (l lm'criliefl, .mi lle lifted ellmul removed lrum he burner men'iber 'i5 slm m iii Fig. :rml inS-erteflen ille limi-ner memmr ifi el :1, as :u i mm'iirlg lille liep plete ermene of lle refuge. 'll e inlet, mul eulileiy piper. el Course will be.wuiiarlily reiiiieeeil wir. ,uxee el miler nml ref'felifmei'e er e1. fr (ille healed i ee 115ml eiglie vallei: ln lim Realtime; il, f 'r f lerlimi me' veler elem; er l jf remevng; 'alle mi pluie ZU it emr lie ma cllier err/)king pluywes nl; 'elle seme time l :it it serves be furnisl::i supply (if het WMC-r.

lzwing thus described .ly inventilou, l claim:

l. In n, Water heater, the eemllilnetien of 1 (lrum lmving n, Series el'rmliarl plm; prejecing imvzirlly aewzml lie eent er, :L \.,\"n.ier-Luliemember eompriSing two evolute coils leeegefl one Wer the other :mileareli having its eenvelutiens spliced lier *message el' the heatingmedium, the inner eues of elle eoilsl lg eeneeelfierl :md their euerends forming; outlet mil iule parte respectively, lille @elle beingeupperteil on r Y 'd elzres, au mmulnfr flefleeting member e` 'tendingfrein 'the drum te tlm miller eui'lvolutien 0l' the upper eeil, :Lsleeve member having :ux oummril llm'ifff :Lt bep amd located inside ofthe eeilS Willi the 'lizmge engaging the 'meer eeeifriliitim'l el' illeupper roll, lille Sleexfelimingg.ai ezrp ranged le tlellee; 'lle llelng' meilleur eut wim-illy from the upper coil.

LZ. Ylu e writer healer', liliV finzrlfie'il el :l drum lmving :Lseriesol radial plees pre-- jecting; inwardly, a 'vente' mbe me'illierl'leetirrg member extending from the rlrm'n te Lille outer cenveliren0l' 'ii-lne upper will,

Sleeve mezril er lawine; am um', mr-l Hiring@ fit ils top muil lo fr11el inside el! 'alle eeils 'with flange engin 'l're inner Qenvelmen el Yupper Oeil, lie sleeve lmff n. nep :m l u mille er1.

e delle t lle healing' meflli, o er lille upper Cnil :md :x` burnerulen'iljer el Q diameter l'lmfn ille rlrmu 2mal :urn-liguri le Lippertlire liezrlier lzlemlier with ille bottom el the plates resl'lng en theburner,

3. In Waller limiter, lille eOHi'biRQtiO'n el' a. drum limfing e Seriesel' l .liel ing 'mwN-illy Leimrrl lil' .Muller7 :i Wmerelle nlemlier(,:emprising will; spaced fer passage el alle limiting; medium, the'inner mils el lhe teils being efmneeled :rml their miler Duels formingeut-let ml inler Amrf resp emvely, Suid (zeil lseinlgf suppertefl enwill plzzes) im annuler rlelleeting irxeml exlerullng .'fem :,lle drumne the outer eeuvolulyimi el he upper eel u', L Sleeve member lumi werd,llfmge el; ils top :mulleeirled m Elle eentrslml spa-ee ef the oeilswith the 'flange ,engine` ing lle inner convolution 0l lille upper COL'Ww. v. vf 1mi-aegee i .EDWARD LEGNA/rml, ELLA J. LEQNARB.

